diff --git a/src/main/java/pl/edu/mimuw/students/wosiu/scraper/ProductResult.java b/src/main/java/pl/edu/mimuw/students/wosiu/scraper/ProductResult.java
index bcd4f3f..f5adf8b 100644
--- a/src/main/java/pl/edu/mimuw/students/wosiu/scraper/ProductResult.java
+++ b/src/main/java/pl/edu/mimuw/students/wosiu/scraper/ProductResult.java
@@ -47,9 +47,9 @@ public void setProxy(Proxy proxy) {
 	// TODO rename getSearchListURL
 	public String getSearchURL() 	{ return safeGet("search-url"); }
 	public String getPrice () 	{ return safeGet("price"); }
-	public Object getPriceAbbr () { return safeGet("price-abbr");}
-	public Object getAmount () 	{ return safeGet("amount");}
-	public Object getUnit () 		{ return safeGet("unit");}
+	public String getPriceAbbr () { return safeGet("price-abbr");}
+	public String getAmount () 	{ return safeGet("amount");}
+	public String getUnit () 		{ return safeGet("unit");}
 
 	// TODO rename getShopName
 	public String getShop() 		{ return safeGet("shop"); }